Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/LR_parser> ?p ?o }
- LR_parser abstract "In computer science, LR parsers are a type of bottom-up parsers that efficiently handle deterministic context-free languages in guaranteed linear time. The LALR parsers and the SLR parsers are common variants of LR parsers. LR parsers are often mechanically generated from a formal grammar for the language by a parser generator tool. They are very widely used for the processing of computer languages, more than other kinds of generated parsers.The name LR is an acronym. The L means that the parser reads input text in one direction without backing up; that direction is typically Left to right within each line, and top to bottom across the lines of the full input file. (This is true for most parsers.) The R means that the parser produces a reversed Rightmost derivation; it does a bottom-up parse, not a top-down LL parse or ad-hoc parse. The name LR is often followed by a numeric qualifier, as in LR(1) or sometimes LR(k). To avoid backtracking or guessing, the LR parser is allowed to peek ahead at k lookahead input symbols before deciding how to parse earlier symbols. Typically k is 1 and is not mentioned. The name LR is often preceded by other qualifiers, as in SLR and LALR.LR parsers are deterministic; they produce a single correct parse without guesswork or backtracking, in linear time. This is ideal for computer languages. But LR parsers are not suited for human languages which need more flexible but slower methods. Other parser methods (CYK algorithm, Earley parser, and GLR parser) that backtrack or yield multiple parses may take O(n2), O(n3) or even exponential time when they guess badly.The above properties of L, R, and k are actually shared by all shift-reduce parsers, including precedence parsers. But by convention, the LR name stands for the form of parsing invented by Donald Knuth, and excludes the earlier, less powerful precedence methods (for example Operator-precedence parser).LR parsers can handle a larger range of languages and grammars than precedence parsers or top-down LL parsing. This is because the LR parser waits until it has seen an entire instance of some grammar pattern before committing to what it has found. An LL parser has to decide or guess what it is seeing much sooner, when it has only seen the leftmost input symbol of that pattern. LR is also better at error reporting. It detects syntax errors as early in the input stream as possible.".
- LR_parser thumbnail Shift-Reduce_Parse_Steps_for_A*2+1.svg?width=300.
- LR_parser wikiPageExternalLink books?id=nEA9AAAAIAAJ&printsec=frontcover.
- LR_parser wikiPageExternalLink honalee.html.
- LR_parser wikiPageExternalLink lrk_parsing.html.
- LR_parser wikiPageExternalLink PTAPG_1st_Edition.
- LR_parser wikiPageExternalLink outline.20.html.
- LR_parser wikiPageExternalLink cparser.html.
- LR_parser wikiPageExternalLink bu-parse.html.
- LR_parser wikiPageExternalLink algorithm.html.
- LR_parser wikiPageExternalLink parsing-simulator.php.
- LR_parser wikiPageID "18030".
- LR_parser wikiPageLength "61244".
- LR_parser wikiPageOutDegree "74".
- LR_parser wikiPageRevisionID "678293040".
- LR_parser wikiPageWikiLink Alphabet_(formal_languages).
- LR_parser wikiPageWikiLink Ambiguous_grammar.
- LR_parser wikiPageWikiLink Backtracking.
- LR_parser wikiPageWikiLink Boldface.
- LR_parser wikiPageWikiLink Bottom-up_parsing.
- LR_parser wikiPageWikiLink CYK_algorithm.
- LR_parser wikiPageWikiLink Cambridge_University_Press.
- LR_parser wikiPageWikiLink Canonical_LR_parser.
- LR_parser wikiPageWikiLink Category:Parsing_algorithms.
- LR_parser wikiPageWikiLink Compiler-compiler.
- LR_parser wikiPageWikiLink Computer_language.
- LR_parser wikiPageWikiLink Computer_science.
- LR_parser wikiPageWikiLink Concatenation.
- LR_parser wikiPageWikiLink Context-free_grammar.
- LR_parser wikiPageWikiLink Dangling_else.
- LR_parser wikiPageWikiLink Deterministic_context-free_language.
- LR_parser wikiPageWikiLink Donald_Knuth.
- LR_parser wikiPageWikiLink Earley_parser.
- LR_parser wikiPageWikiLink Emphasis_(typography).
- LR_parser wikiPageWikiLink File:Bottom-Up_Parser.svg.
- LR_parser wikiPageWikiLink File:Shift-Reduce_Parse_Steps_for_A*2+1.svg.
- LR_parser wikiPageWikiLink Finite-state_machine.
- LR_parser wikiPageWikiLink Finite_state_automaton.
- LR_parser wikiPageWikiLink Formal_grammar.
- LR_parser wikiPageWikiLink Frank_DeRemer.
- LR_parser wikiPageWikiLink GLR_parser.
- LR_parser wikiPageWikiLink GNU_Bison.
- LR_parser wikiPageWikiLink GNU_bison.
- LR_parser wikiPageWikiLink Generalized_LR_parser.
- LR_parser wikiPageWikiLink LALR.
- LR_parser wikiPageWikiLink LALR_parser.
- LR_parser wikiPageWikiLink LL_parser.
- LR_parser wikiPageWikiLink LL_parsing.
- LR_parser wikiPageWikiLink Left_corner_parser.
- LR_parser wikiPageWikiLink Lexical_analysis.
- LR_parser wikiPageWikiLink Nonterminal_symbol.
- LR_parser wikiPageWikiLink Operator-precedence_parser.
- LR_parser wikiPageWikiLink Parse_tree.
- LR_parser wikiPageWikiLink Parser.
- LR_parser wikiPageWikiLink Parser_generator.
- LR_parser wikiPageWikiLink Parsing.
- LR_parser wikiPageWikiLink Prefix_(formal_languages).
- LR_parser wikiPageWikiLink Programming_language.
- LR_parser wikiPageWikiLink Prolog.
- LR_parser wikiPageWikiLink Recursive_ascent_parser.
- LR_parser wikiPageWikiLink Recursive_descent_parser.
- LR_parser wikiPageWikiLink Rightmost_derivation.
- LR_parser wikiPageWikiLink SLR_grammar.
- LR_parser wikiPageWikiLink SLR_parser.
- LR_parser wikiPageWikiLink Semantics.
- LR_parser wikiPageWikiLink Shift-reduce_parser.
- LR_parser wikiPageWikiLink Simple_LR_parser.
- LR_parser wikiPageWikiLink Simple_precedence_parser.
- LR_parser wikiPageWikiLink Stack_(abstract_data_type).
- LR_parser wikiPageWikiLink Substring.
- LR_parser wikiPageWikiLink Terminal_and_nonterminal_symbols.
- LR_parser wikiPageWikiLink Terminal_symbol.
- LR_parser wikiPageWikiLink Top-down_parser.
- LR_parser wikiPageWikiLink Top-down_parsing.
- LR_parser wikiPageWikiLink Yacc.
- LR_parser wikiPageWikiLink File:LR_Parser.png.
- LR_parser wikiPageWikiLinkText "Item".
- LR_parser wikiPageWikiLinkText "LR parser".
- LR_parser wikiPageWikiLinkText "LR parser#Conflicts in the constructed tables".
- LR_parser wikiPageWikiLinkText "LR parsing".
- LR_parser wikiPageWikiLinkText "LR".
- LR_parser wikiPageWikiLinkText "LR(''k'')".
- LR_parser wikiPageWikiLinkText "LR(0) parsing tables".
- LR_parser wikiPageWikiLinkText "LR(0)".
- LR_parser wikiPageWikiLinkText "LR(1)".
- LR_parser wikiPageWikiLinkText "LR(?)".
- LR_parser wikiPageWikiLinkText "LR(???)".
- LR_parser wikiPageWikiLinkText "LR(k) grammars".
- LR_parser wikiPageWikiLinkText "LR(k) parser".
- LR_parser wikiPageWikiLinkText "LR(k)".
- LR_parser wikiPageWikiLinkText "LR(k)-parsable".
- LR_parser wikiPageWikiLinkText "LR-parsers".
- LR_parser wikiPageWikiLinkText "parse table".
- LR_parser hasPhotoCollection LR_parser.
- LR_parser wikiPageUsesTemplate Template:Citation_needed.
- LR_parser wikiPageUsesTemplate Template:Color.
- LR_parser wikiPageUsesTemplate Template:Reflist.
- LR_parser wikiPageUsesTemplate Template:Rule.
- LR_parser subject Category:Parsing_algorithms.
- LR_parser hypernym Parsers.